# Define your item pipelines here
#
# Don't forget to add your pipeline to the ITEM_PIPELINES setting
# See: https://docs.scrapy.org/en/latest/topics/item-pipeline.html


# useful for handling different item types with a single interface
from itemadapter import ItemAdapter

import json


class BiliJsonPipeline:
    def open_spider(self,spider):
        self.f = open('b.json','w',encoding='utf-8')
    def process_item(self, item, spider):
        text = json.dumps(dict(item),ensure_ascii=False)
        self.f.write(text+'\n')
        return item
    def close_spider(self,spider):
        self.f.close()